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VB Strings

String vocabulary for Visual Basic

QuestionAnswer
string literal designated by using quotation marks around it; actual characters
string variable name of a variable that is declared as the String data type in the code; name of a textbox or a label
string value data being held in a string variable
empty string no characters in it; designated by ""
concatenation connecting several strings together
& ampersand; concatenation operator
Str( ) converts a numerical value into a string value
Val( ) converst a string value into a numerical value
string digits, letters, symbols that are NOT used for mathematical operations
example of numbers as strings social security number, phone number, because calculations are not done with these
Len( ) number of characters and spaces in a string
concatenate join strings together
Str( ) convert numerical value into a string
Val( ) convert a string into a numerical value
declaration of string variable Dim FirstName As String
assigning a string literal to a string variable FirstName = "James"
making a string literal appear in a message box MsgBox "INVALID DATA"
example of a string variable for a textbox txtUnits
example of concatenation in output lblOutput = Str(Result) & " square " & txtUnits
concatenation of string variables FullName = FirstNmae & " " & LastName
ASCII code code number for a character
comparison operators for strings =, >, <, <>, >=, <=
comparison of strings earlier in the alphabet is less than later in the alphabet
uppercase letters ASCII codes from 65 to 90
lowercase letters ASCII codes from 97 to 122
UCase( ) turn string value into uppercase
LCase( ) make string value lowercase
13 ASCII code of Enter key
0 Length of empty string
Created by: JHangen
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